Update README.md

Author: nodkz

README.md

@@ -1,17 +1,29 @@
 graphql-compose-relay
 ======================
-This is a plugin for `graphql-compose`, which wraps GraphQL types with Relay specific things, like `Node` type and interface, `globalId`, `clientMutationId`.
+This is a plugin for [graphql-compose](https://github.com/nodkz/graphql-compose), which wraps GraphQL types with Relay specific things, like `Node` type and interface, `globalId`, `clientMutationId`.
 
 [CHANGELOG](https://github.com/nodkz/graphql-compose-relay/blob/master/CHANGELOG.md)
 
 Example
 =======
+`TypeComposer` is a [graphql-compose](https://github.com/nodkz/graphql-compose) utility, that wraps GraphQL types and provide bunch of useful methods for type manipulation.
 ```js
 import composeWithRelay from 'graphql-compose-relay';
+import { TypeComposer } from 'graphql-compose';
+import { RootQueryType, UserType } from './my-graphq-object-types';
 
-composeWithRelay(rootQueryTypeComposer); // add `node` field to RootQuery
-composeWithRelay(userTypeComposer); // wrap Type with middlewares, that add relay's fields and tune resolver.
-composeWithRelay(someOtherTypeComposer);
+const rootQueryTypeComposer = new TypeComposer(RootQueryType);
+const userTypeComposer = new TypeComposer(UserType); 
+
+// If passed RootQuery, then will be added only `node` field to this type. 
+// Via RootQuery.node you may find objects by globally unique ID among all types.
+composeWithRelay(rootQueryTypeComposer); 
+
+// Other types, like User, will be wrapped with middlewares that:
+// - add relay's id field. Field will be added or wrapped to return Relay's globally unique ID.
+// - for mutations will be added clientMutationId to input and output objects types
+// - this type will be added to NodeInterface for resolving via RootQuery.node
+composeWithRelay(userTypeComposer); 
 ```
 That's all!
 
@@ -27,8 +39,6 @@ Method `composeWithRelay` accept `TypeComposer` as input argument. So `TypeCompo
 
 If something is missing `composeWithRelay` throws error.
 
-`TypeComposer` is [graphql-compose](https://github.com/nodkz/graphql-compose) utility, that wraps GraphQL type and provide bunch of useful methods for type manipulation.
-
 Compatible plugins
 ==================
 - [graphql-compose-mongoose](https://github.com/nodkz/graphql-compose-mongoose)